Hyde Triangular Corner Sanding Sponge - Fine 220 Grit

So my complaint is more about the holder and not the sponge, but that's why I am buying another sponge. It started shifting and getting loose, a bit afraid the metal hook could gouge the wall if I wasn't careful. Sanded most of 900 sqft project once with this, maybe 500 linear feet of corners.

These were great when sanding the plaster in the corners of the walls. Really do the job. They do wear down, so on a larger, multi-room project, get several.

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So this is the first corner sander I have ever used.THE GOOD: Loved it. Sanded both sides easily. Sanded right tight in to the three ways. You still need to give the three ways a quick once over with a conventional sanding block, but it is quick. Faster, easier on my shoulders, your also eating less dust because the pile puts you away from the angle. I Sanded 8' ceiling angles from the floor, then got on stilts to check the three waysess time on still is good.THE BAD: There really is only one bad issue I have seen with this tool. The hooks to hold the block to tje head penatrate the block. After about 100 12' sheetworth of angles, the hooks had worn out the holes and the block was very loose on the head. I moved the hooks to a new spot, but it is a limited area, so it wore out as well. I am going to try and reinforce the next block with a liquid rubber coating before I pit the hooks through it.